Notopala hanleyi
Notopala hanleyi is a species of large freshwater snail, an aquatic gastropod mollusc in the family Viviparidae. It is also classified as a subspecies Notopala sublineata hanleyi.
This species is endemic to List of non-marine [molluscs of Australia|Australia] and is found across the Murray-Darling basin.
This species was thought to be extinct, but one population has been found in pipeline in 1993.
It feeds on microbial and organic matter.